The present invention provides a releasable clamp assembly for supporting one or more bullet deflecting plates, comprising: a first plate holder having a channel for receiving an outer lateral edge of a first deflecting plate; a second plate holder having a channel for receiving an outer lateral edge of a second deflecting plate; and a bridge comprising a bridge connecting the first plate holder and the second plate holder and one or more releasable clamp integral with the bridge, wherein the one or more releasable clamp is adapted to apply a clamping force in a direction substantially perpendicular to the first plate holder channel and second plate holder channel. The releasable clamp assembly, when disposed over the outer lateral edges of the first and second deflecting plate, positions the releasable clamp over the first and second deflecting plate to apply a clamping force to the one or more deflecting plate, thereby holding the releasable clamp assembly in secure engagement with the first and second deflecting plate.